ISSUE-89

rdf:type mapping

RESOLVED: In the RDF mapping (*,rdf:type,owl:Class) triples do not map to axioms

State:

CLOSED

Product:

Raised by:

Michael Smith

Opened on:

2007-12-06

Description:

The structural syntax defines ontologies using axioms, not entities (such as classes).

Based on the submission RDF mapping document, if a document contains only the following single RDF triple, the ontology contains no axioms.

:Person rdf:type owl:Class .


OWL 1.1 does contain declaration axioms, but the mapping uses new vocabulary, as in the following triple, which yields Declaration(OWLClass(:Person))

:Person owl11:declaredAs owl:Class .


The requirement to use the new vocabulary to have a class used in an axiom, and hence "in" an ontology, may cause backwards compatibility problems and may be inconsistent with user expectations.

This also holds for object and data properties.

Declarations are described at http://www.w3.org/2007/OWL/wiki/Syntax#Declarations_and_Structural_Consistency

Related Actions Items:

No related actions

Related emails:

1. ISSUE-103 (metamapping): Meta Issue to track other issues related to mapping (from sysbot+tracker@w3.org on 2008-03-17)
2. RDF-to-Functional mapping: What happens if an RDF graph contains un-mappable portions? (from schneid@fzi.de on 2008-03-14)
3. RE: proposal to close ISSUE-102 (from schneid@fzi.de on 2008-03-13)
4. RE: proposal to close ISSUE-102 (from boris.motik@comlab.ox.ac.uk on 2008-03-13)
5. RE: proposal to close ISSUE-102 (from schneid@fzi.de on 2008-03-13)
6. Re: proposal to close ...-102 (from alanruttenberg@gmail.com on 2008-03-13)
7. Re: proposal to close ...-102 (from pfps@research.bell-labs.com on 2008-03-13)
8. Entities in ontologies [was Re: ACTION-61 (F2F minutes link fix up) complete and two points] (from msmith@clarkparsia.com on 2008-01-16)
9. ISSUE-89 (rdf:type mapping): REPORTED: In the RDF mapping (*,rdf:type,owl:Class) triples do not map to axioms (from sysbot+tracker@w3.org on 2007-12-06)

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